EFFECT OF TEMPERATURE ON CARBURATION AND ITS COMPENSATION

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Abstract
The present article deals with a new problem to compensate the undue effect of temperature on the action of a carburettor. This problem has not thoroughly been studied hitherto and nothing more than half-way solutions has ever been known. The authers found that the effect was chiefly due to changes of densities of air and fuel and an inadequate variation in discharge-coefficient of the fuel-metering orifice with temperature. The solution, obtained as a natural consequence, was the use of a metering orifice of such a discharge-characteristic, that the variation of it with the temperature of fuel was just to compensate the corresponding changes in densities of air and fuel. Such a characteristic was treated analytically at first, and the authers found by experiments a simple form of orifice satisfying the reqnired condition.

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